marymarthens2 marymarthens2
  • 12-07-2022
  • Chemistry
contestada

2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2O

In the above equation how many grams of N2 can be made when 181 grams of CuO are consumed?

Respuesta :

Medunno13
Medunno13 Medunno13
  • 13-07-2022

Answer:

21.2 g

Explanation:

From the coefficients of the equation, we know that for every mole of nitrogen produced, 3 moles of CuO are consumed.

CuO has a formula mass of 79.545 g/mol, so 181 g is equal to 181/79.545 = 2.275 mol.

This means we need 2.275/3 = 0.758 mol of nitrogen.

Nitrogen has an atomic mass of 28.014 g/mol, so the answer is (28.014)(0.758) = 21.2 g to 3 sf

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